# System Requirements

# Runtime

.NET 5 Desktop Runtime x86 (opens new window).

with runtime version including Office Tool Plus and Runtime library, you can run Office Tool Plus without .NET Runtime installation.

# Supported systems

Windows 7 SP1, Windows 8, Windows 10.

Windows Server 2008 R2 SP1, Windows Server 2012 or higher.

Office Tool Plus doesn't support Mac OS.

# For Windows 7

If you can't run Office Tool Plus on Windows 7, please update your system using Windows Update.

For quick solution, please try to download KB2533623 update first: Update for Windows 7 (KB3063858) (opens new window), Update for Windows 7 for x64-based Systems (KB3063858) (opens new window). If not work, update the system completely.

Alternatively, you can download an update pack (opens new window) to upgrade your Windows 7.